JP2022175965A5 - - Google Patents

Claims (19)

A brake pedal device mounted on a vehicle,
a pedal pad (40) that rotates around a predetermined axis (CL) when depressed by the driver;
a reaction force generating mechanism (30) that generates a reaction force to the pedal pad according to the amount of depression of the pedal pad,
The pedal pad includes a pedal base (410) extending away from the axis from an end on the side of the axis to the other end, and a pedal operation part (410) attached to the pedal base and stepped on by the driver. 420) and
The pedal operation portion protrudes toward the pedal return side in the direction of rotation about the axis with respect to the pedal base portion,
The surface of the pedal operation portion has flat portions (421a, 421f) that are configured as flat surfaces and are stepped on by the driver,
A brake pedal device, wherein a reaction force (Fr) generated by the reaction force generating mechanism acts on the pedal pad in a direction penetrating the flat portion. A connecting rod (70) for transmitting the reaction force generated by the reaction force generating mechanism to the pedal pad ,
one end of the connecting rod is connected to the reaction force generating mechanism and the other end is connected to the pedal pad;
2. The brake pedal device according to claim 1, wherein the portion where the connecting rod is connected to the pedal pad overlaps with the flat portion in the direction of rotation about the axis. The brake pedal device according to claim 1 or 2, wherein the surface of the pedal operating portion is formed with anti-slip portions (421b, 421c, 421d). 4. The brake pedal device according to claim 3, wherein the anti-slip portion has one or both of a concave portion and a convex portion that are convex with respect to the flat portion. The brake pedal device according to claim 3 or 4, wherein the non-slip portion includes a rubber material. 6. The brake pedal device according to any one of claims 1 to 5, wherein said pedal operating portion includes a resin material. 7. The side surface (423, 424) of the pedal operation portion on one side in the vehicle width direction is inclined toward the other side in the vehicle width direction toward the pedal return side. The brake pedal device according to . 8. The brake according to any one of claims 1 to 7, wherein a side surface (422) of the pedal operating portion closest to the axis is inclined away from the axis toward the pedal return side. pedal device. An organ-type brake pedal device,
The pedal base has an upper surface (410a) on the pedal return side,
The pedal operating portion is not provided on the upper surface at a portion closer to the lower end than an intermediate position equidistant from the lower end and the upper end of the upper surface, and is fixed at a portion closer to the upper end than the intermediate position. 9. A brake pedal device according to any one of claims 1 to 8, wherein 9. The brake pedal device according to any one of claims 1 to 8, wherein the pedal base portion and the pedal operating portion are formed of a single plate. 10. The brake pedal device according to any one of claims 1 to 9 , wherein the pedal base portion and the pedal operation portion are separate parts. 12. The brake pedal device according to claim 11 , wherein said pedal operating portion is fastened to said pedal base portion with a screw (81). a projecting portion (82) formed integrally with one of the pedal operating portion and the pedal base;
The pedal operating portion and the pedal base are fixed to each other by press-fitting the projecting portion into a receiving hole (83) formed in the other of the pedal operating portion and the pedal base. Item 12. A brake pedal device according to Item 11 . a rivet (84) integrally formed with one of the pedal operating portion and the pedal base;
The rivet has a body portion (86) inserted into a receiving hole (85) formed in the other of the pedal operation portion and the pedal base portion, and a body portion (86) located on the opposite side of the one with respect to the receiving hole. a head (87) having a larger diameter than the receiving hole;
12. The brake pedal device according to claim 11 , wherein said rivet secures said pedal operating portion and said pedal base relative to each other. an engaging member (90) integrally formed with one of the pedal operating portion and the pedal base;
the engaging member is engaged with the other of the pedal operating portion and the pedal base by snap fit using a receiving hole (91) formed in the other;
12. The brake pedal device of claim 11 , wherein the snap fit secures the pedal actuator and the pedal base relative to each other. 16. Any one of claims 1 to 15 , wherein the reaction force generating mechanism comprises one or more of coil springs (33, 34), leaf springs (31) and torsion springs (32) made of metal material. 1. A brake pedal device according to one. 17. At least a part of the member that generates elastic force as a reaction force in the reaction force generating mechanism includes a steel material, and the steel material has a carbon content of 0.1% by weight or more. The brake pedal device according to any one of . A sensor unit (50) that outputs a signal corresponding to the rotation angle of the pedal pad,
A brake caliper (131 to 134) that generates a braking force by pressing the brake pad against the brake disc with a force corresponding to the hydraulic pressure, and an electric motor (123) that adjusts the hydraulic pressure to the brake caliper. and an ECU (111) that controls the electric motor based on a signal,
18. The brake pedal device according to claim 1, wherein said sensor unit outputs said signal corresponding to said rotation angle of said pedal pad to said ECU. A housing (10, 20) covering the reaction force generating mechanism,
19. The brake pedal device according to claim 18 , wherein the force transmitted by the hydraulic pressure is not applied to the pedal pad as a reaction force.